NOTE: If you are 17 or older you can walk - in and get emergency contraception pills anytime the health center is open. (plannedparenthood.org)
To be sure, there are reasons why women may opt for emergency contraception pills instead of IUDs. (livescience.com)
In fact, getting your period later or earlier than usual is one of the most common side effects of emergency contraception pills like Plan B, Next Choice, and ella. (plannedparenthood.org)